Spark plug sound from the radiator

This problem is caused by the coolant temperature sensor and this will cause you to think the car overheated but the gauge isn't working properly as supposed to

if your spark plugs are wet that's either a blown head gasket, or a warped head, that's the only way water could get into the cylinder

Check your oil. If you have coolant in your oil you need a head gasket.

Is the radiator still full of coolant ? Are you saying the engine will not crank ? Have you pulled the spark plugs and checked for coolant in the cylinders ?

OK - You confirmed the thermostat was causing the overheating? Sounds like fuel injectors - but check the spark plugs and ignition coils first.

Did you bleed the cooling system? and check operation of the thermostat, which should have been done after fitting radiator before finishing by putting on radiator cap.
If not remove radiator cap when cold get vehicle warm and check thermostat operation, while bleeding any air pockets in cooling system and if no flow and bubbles or it starts to boil (shooting water) out of radiator the thermostat could be jammed or head gasket blown.
Sounds like it could be a blown head gasket. Get it hot again and miss firing, remove and inspect all spark plugs you may find a very clean spark plug indicating water entry into that cylinder or even water/coolant droplets in spark plug. You can also hold paper over spark plug holes and give the engine a quick crank over to see if any water comes out of cylinder while cooling system is still under pressure, or use radiator pressure tester to pressurize cooling system, wait 5-10 minutes and then crank over checking for water/coolant in cylinders. Another tool to check for blown head gaskets that cause overheating is a TK Head check, which sniffs the cooling system for evidence of exhaust fumes in cooling system.

does it show to be overheating?? sounds like it could possibly be overheating..check water in radiator and then thermostat located inside upper radiator hose where hose is mounted on front of motor.. take the thermostat out and put in near boiling water and see if you see it open up... if your thermostat is not opening, it will cause the car to over heat after driving for awhile and cause what you are describing..

Sounds like a number of things. I would start with the thermostat. Other conditions such as a plugged radiator or warped head gasket are possible. An overheated engine won't last long.

There are a lot of things that can cause overheating. The first and most common is the thermostat sticking. Next is your radiator fan. Your water pump. Restricted radiator air flow. Make sure the front of your car is not restricted in any way, and the fins of your rad isn't plugged with bugs, or dirt.

The thermostat is the most likely problem and also the easiest/cheapest to replace. You could also start by checking the fuse for the electric engine fan, if it is good you could try to disconnect the fan and run 12v ( + and -) to it directly from the battery. It should turn on.